Home / 403,543,521,521.28-556,890,106,916.80-220,640,747,065.92

Finding the Fourth Proportional to 403,543,521,521.28, 556,890,106,916.80 and 220,640,747,065.92

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Solution

The fourth proportional to 403,543,521,521.28, 556,890,106,916.80 and 220,640,747,065.92 is: 304,484,256,767.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,543,521,521.28 : 556,890,106,916.80 = 220,640,747,065.92 : x
  2. Step 2: Convert to fraction form
    403,543,521,521.28/556,890,106,916.80 = 220,640,747,065.92/x
  3. Step 3: Cross multiply
    403,543,521,521.28x = 556,890,106,916.80 × 220,640,747,065.92
  4. Step 4: Simplify right side
    403,543,521,521.28x = 122,872,649,223,742,829,887,488
  5. Step 5: Solve for x
    x = 122,872,649,223,742,829,887,488/403,543,521,521.28
  6. Step 6: Final answer
    x = 304,484,256,767.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.